刺梨和无籽刺梨挥发性香气成分的比较研究

Volatile aroma compounds of Rosa Roxburghii Tratt and Rosa sterilis

摘要:

用固相微萃取技术和气相色谱－质谱仪联用技术,对刺梨和无籽刺梨的香气成分进行了分析测定，峰面积归一化法测定各成分相对含量。试验从刺梨中检测鉴定了31个化合物，无籽刺梨中共检测鉴定了32个化合物，在刺梨和无籽刺梨中都存在的化合物有14个。刺梨中的主要成分为：3,7-二甲基-1,3,7-辛三烯(20.469%), 壬醛（5.029%）、1-石竹烯（6.101%）、γ-芹子烯（12.733%）、正二十八烷（6.507%）；无籽刺梨中的主要成分为：乙酸顺式-3-己烯酯（10.649%）、3,7-二甲基-1,3,7-辛三烯（5.672%）、1-石竹烯（10.643%）、α-石竹烯（5.911%）、γ-芹子烯（18.218%）、α-芹子烯（5.412%）、正十七烷（11.573%）、。刺梨与无籽刺梨的主要成分有一定的差异，可能是造成二者气味及口感差异的原因。研究结果为刺梨和无籽刺梨的开发提供了科学依据。

Abstract:

Volatile aroma compounds of Rosa Roxburghii Tratt and Rosa sterilis was extracted by solid-phase microextraction , identified by GC-MS technique and their relative content was ascertained by area normalization method of each constituent . There were 31 compounds be found in the extracts from Rosa Roxburghii and 32 compounds be found in the extracts from Rosa sterilis. 14 compounds were the common compounds of the two plants . The main compounds in Rosa Roxburghii were Trans,-bata.-ocimene(20.649%), Nonanal(5.029%)), 1-humulene (6.101%), , Gama-Seliene (12.733%), Hetriacontan (6.507%) The main compounds in Rosa sterilis included 3-Hexen-1-ol,acetate- (Z)-( 10.649%), Trans-,beta-ocimene(5.672%),1-humulene (10.643%), Alpha-humulene(5.911%), Gama-Seliene (18.218%), Alpha -Seliene(5.412%), Heptadecane,9-octyl- (11.573%). There are some differences in the main component of Rosa Roxburghii Tratt and Rosa sterilis . This result provided a scientific basis for utility of Rosa Roxburghii Tratt and Rosa sterilis .